trees

within 25 miles

Apr 20, 2026

Near

Distance

From

Until

114 opportunities found! use fewer search filter criteria to find more opportunities

Filters

Activity Type

Age

Kids Friendly Only

21+ Only

Participant Age Range Minimum

100

Participant Age Range Maximum

100

Cost

Any Cost Free Only

Topic

Venue Type

Host Organization

Partner Organization

University of Freiburg

3Dtrees.earth

Collect data and tools for LiDAR-based forest monitoring

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentGeographyComputers & Technologyremote sensingscanningmonitoringdroneslidarforestinventorycomputer vision

Ancient Tree Inventory

To build a living database of ancient trees

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsBiologytrees, united kingdom

2B Technologies, Inc.

AQTreks (AirQualityTreks)

Monitor air pollution levels and map air pollution around the US

Multiple locations, including yours!

Ongoing

Citizen ScienceNature & OutdoorsGeographyEducationCrowd FundingTransportationEcology & EnvironmentComputers & TechnologyClimate & WeatherChemistryOcean Water Marinegirl scoutscarbon dioxidesciencemobile applicationcitizen scienceair pollutionairclimate changebicyclingstemenvironmentappair qualityspringdatadatabaseec2020winterglobal warmingexperimentair pollution monitoringhikingweatherautumnandroidoutdoorsinvestigationiphonesmartphone applicationweather datausaenvironmental justiceclimate monitoringcommunity-based monitoringclimatenaturesummercarbon monoxideair quality indexparticulate matterequity

Arizona State Parks & Trails

Arizona State Parks & Trails: Ethnobotany Guided Hike at Red Rock

Red Rock State Park Arizona

April 26, 2026 at 7:00 AM

CommunityGeneral Science

Arizona State Parks & Trails

Arizona State Parks & Trails: Picnic with the Pendleys

Slide Rock State Park Arizona

April 25, 2026 at 7:00 AM

CommunityGeneral Science

NC State University | ecoipm.org | YourWildLife.org

A Tree's Life

To learn how climate & urbanization affect tree growth & health

Multiple locations, including yours!

Ongoing

Citizen ScienceBiologyEducationClimate & WeatherNature & OutdoorsEcology & Environmentcarbon sequestrationtreesurban ecologyclimate change

Cornell University/New York Department of Environmental Conservation

AVID (Assessing Vegetation Impacts from Deer)

Monitor the effects of deer browsing on woodland trees and plants

Multiple locations, including yours!

Ongoing through November 30, 2030 at 8:35 PM

Citizen ScienceAnimalsEcology & EnvironmentNature & Outdoorsseedlingswildlifewildflowerstreesforestwoodlandsecologydeerforest health

Airigami

Balloon Breakdown

Help compost 40,000 latex balloons

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & Environmentballoonscompostingcompostballoon

Northern Rivers Fire and Biodiversity Consortium Inc.

Bell Miner Associated Dieback Best Practice Project

Evaluate the removal of mid-storey density in disturbed forests using prescribed fire, weed control and bush regeneration as a method to restore BMAD affected forest.

Anywhere

Ongoing

Citizen ScienceEducationEcology & EnvironmentBirdstree health across the northern rivers region of new south walesgondwana world heritagelandholdersaustraliadatalocations of native bell miner colonies biodiversity birdsbird monitoringbell miner associated dieback (bmad)bmad affected forest trees

Zooniverse

Buzzy Bee - African Canopy Pollinators

Study pollination of Central African timber species

Anywhere

Ongoing

Citizen ScienceInsects & PollinatorsEcology & EnvironmentBiologycirculating entomofaunapollination flower ecology tree conservation interaction botany insect entomologyfloral traitssize and composition of pollinators communitiestimber speciestropical rainforesttree speciespollen dispersal distances

12 3 4 5…

Share Your Results

Share the list by copying the link below

Copy Link